List questions from fourier-series

Published on 15 Apr 2026 - 1:41

57

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Differences in the Drawings of Fourier Series

Published on 04 May 2026 - 22:45

357

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Visualizing the Fourier and Laplace transform

Published on 14 Apr 2026 - 12:18

26

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Identity for the coefficients of trigonomeric polynomials

Published on 13 Apr 2026 - 20:51

152

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Fourier series and a specific identity

Published on 10 Apr 2026 - 23:22

102

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Finding the f(x) in a Fourier series

Published on 11 Apr 2026 - 19:29

2.5k

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using fourier series to solve differential equation

Published on 22 Apr 2026 - 1:20

227

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Linking Fourier coefficients and modulus/phase of harmonics

Published on 12 Apr 2026 - 12:56

92

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Finite Fourier expansion of product of sines

Published on 10 Apr 2026 - 12:39

1.5k

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Completeness of a basis

Published on 29 Apr 2026 - 13:25

46

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How can I prove $f=g$ when $f_k$ pointwisely converges to $f$, $L^2$ converges to $g$, and $f$, $g$ are continuous?

Published on 14 Apr 2026 - 20:36

1.4k

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Find the fourier series for $f(x) = x$ for $ 0<x<1 $

Published on 14 Apr 2026 - 22:38

105

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Fourier Series Integration

Published on 10 Apr 2026 - 0:56

296

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Show that $\sum_{n=1}^{\infty} \frac{1}{n^4} = \frac{\pi^4}{90}$

Published on 13 Apr 2026 - 19:40

799

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Proof of differentiability condition for Fourier series

Published on 10 Apr 2026 - 12:50

List Question

Fourier series of $f(x)=x\cos(x)$

Differences in the Drawings of Fourier Series

Visualizing the Fourier and Laplace transform

Identity for the coefficients of trigonomeric polynomials

Fourier series and a specific identity

Finding the f(x) in a Fourier series

using fourier series to solve differential equation

Linking Fourier coefficients and modulus/phase of harmonics

Finite Fourier expansion of product of sines

Completeness of a basis

How can I prove $f=g$ when $f_k$ pointwisely converges to $f$, $L^2$ converges to $g$, and $f$, $g$ are continuous?

Find the fourier series for $f(x) = x$ for $ 0<x<1 $

Fourier Series Integration

Show that $\sum_{n=1}^{\infty} \frac{1}{n^4} = \frac{\pi^4}{90}$

Proof of differentiability condition for Fourier series

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